MAINTAINING THE CHAIN BRAKE

This chain saw is equipped with a new type of automatic chain brake that has been adjusted at the factory. It will need no further adjust- ment.

Release the chain brake as soon as you move or cease working even if it is for a short break. Push the front hand guard to release the

brake. ‘:”

During the break: .

Check that the brake mechanism works smoothly.

If not, remove resin and sawdust. Check that supports and sliding

surfaces are lubricated with grease or temperature-resistant engine oil.

Apply full throttle and release the chain brake. The chain should immediately stop rotating.

ADJUSTING THE CARBURETOR

The carburetor has three adjusting screws:

L = Low speed needle

H = High spaed needle

T = Throttle adjusting screw

The carburetor is adjusted as follows:

1.Clean the air filter.

2.Screw the needles H and L carefully right in.

3.Then screw the needles out to recommended basic position:

H = 1 turn out

L = 1 turn out

4.Start the engine and warm it up. Adjust the idling speed by means of the throttle adjusting screw so that the chain starts rotating.

5.Adjust the low speed needle to reach the highest speed at which the engine is still idling, Then screw the needle out equivalent to 10 minutes on a clock-face.

~,,

Use the following procedw’e to check that the automatic chain brake actuates correctly;

Hold the chain saw horizontally abt 20 cm over a trunk. NOTE! Switch off the engine! Release your grip on the front handle. As the saw by force of its own weight swings around the rear handle and the guide bar tip hits the trunk, the brake should actuate.

At the service workshop:

Check that the brake mechanism and the brake band are free from sawdust and dirt.

Check the wear of the brake band. In unbraked position it must not touch the clutch drum.

Check the wear of the chain brake mechanism.

Check that the front hand guard is not damaged.

Lubricate the supports and gliding surfaces of the front hand guard

with grease or temperature-resistant engine oil.

6Again adjust the idling speed by means of the throttle screw (see under 4 above) so that a speed of approx 2,500 r/rein is received.

7ADDIV full throttle, At correct adjustment of the hiqh-.sDeed needle, the e’ngine should be fourstrok~ng.

If this is not the case screw out the needle to reach a distinct fourstroke.

Engine speed: Maximum 12,500 r/rein.

NOTE!

Should the engine not be fourstroking, there is a risk of piston seizure.

Adjust the high speed needle for maximum power and not for maximum speed!

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Husqvarna 50 Rancher manual Maintaining the Chain Brake, Adjusting the Carburetor
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50 Rancher specifications

The Husqvarna 50 Rancher is a powerful and versatile chainsaw designed for both professional loggers and passionate homeowners. Renowned for its robust performance, this model blends innovative technologies with ease of use, making it a popular choice for a variety of cutting tasks.

At the heart of the Husqvarna 50 Rancher is its high-performance engine. With a displacement of 50cc, the chainsaw delivers impressive power while remaining lightweight and manageable. This balance is crucial for extended use, allowing operators to work efficiently without undue fatigue. The engine features Husqvarna’s X-Torq technology, which significantly reduces fuel consumption and emissions. This eco-friendly design not only meets stringent environmental standards but also ensures longer run times between refueling, enhancing user convenience.

Another standout feature is the chainsaw's advanced air injection system. This pre-cleaning air filter system helps to extend the life of the air filter by removing larger dust and debris particles before they reach the filter. This results in less maintenance and more productive work time. Additionally, the quick-release air filter allows for easy and hassle-free cleaning, ensuring that the chainsaw operates at peak efficiency.

Ergonomics play a crucial role in the design of the Husqvarna 50 Rancher. The chainsaw is equipped with a cushioned rear handle and well-placed controls for added comfort during prolonged use. The adjustable oil pump allows users to manage oil flow as per their cutting needs, which optimizes chain lubrication and extends the lifespan of both the chain and bar.

Safety is paramount in the design of the 50 Rancher, which comes with features like a chain brake that activates in the event of kickback. The anti-vibration system minimizes hand and arm fatigue, allowing for more stable and controlled operation. Additionally, the chainsaw is fitted with a throttle lock that prevents accidental engagement, ensuring safe handling at all times.

In summary, the Husqvarna 50 Rancher combines power, efficiency, and safety features into a reliable package perfect for any cutting challenge. Its lightweight construction, advanced technologies, and user-friendly design make it an excellent choice for both professional and casual users. Whether tackling firewood, clearing brush, or felling trees, the Husqvarna 50 Rancher stands out as a top-tier chainsaw in its class.
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